code: def visit_functiondef(self, node: astroid.FunctionDef):
      self.funcs.append(node)
      self.useless_assign(node.body)
  
file_path: mlflow/pylint_plugins/assign_checker.py
imports: from typing import List
  import astroid
  from pylint.checkers import BaseChecker
  from pylint.interfaces import IAstroidChecker
  from pylint_plugins.errors import USELESS_ASSIGNMENT, to_msgs
label_desc: Use image node_id 4 for calling the AssignChecker obj's underlying member method code with example usage: obj.visit_functiondef(node) without return types